Door-operator.



G. R. WIMBERLY.

DOOR OPERATOR.

APPLICATION FILED MAR.16, 1915. 1,1 92,968. Patented Aug. 1, 1916.

2 SHEETS-SHEET I.

k H ucnfo: amzmzwy G. R. WIMBERLY.

DOOR OPERATOR. APPLI CATION FILED MAR. 16,1915- 1.,192,968. I PatntedAug. 1,1916.

2 SHEETS-SHEET 2.

25 (Z12. Wiinbel ly (life-(nag GEORGE R. WIMBERLY, OF MOUNTAIN PARK, OKLAHOMA.

DOOR-OPERATOR.

Specification of Letters Patent.

Patented Aug. 1, 1916.

Application filed March 16, 1915. Serial. No. 14,850.

To all whom it may concern Be it known that I, GEORGE R. WIMBERLY, a citizen of the United States, residing at Mountain Park, in the county of Kiowa and State of Oklahoma, have invented new and useful Improvements in Door-Operators, of which the following is a specification.

This invention relates to door operators and it consists in the novel features hereinafter described and claimed.

A further object of the invention is to produce simple and effective means whereby the door will be locked when closed so that it may not be readily opened except by the heavypressure exerted by the wheels of the I vehicle.

In the drawings,Figure 1 is a perspective view, showing a portion of a'barn or other building having the improved door and showing the approach to the same. Fig. 2 is a view in elevation showing the inside of the door and the actuating means for the same. Fig. 3 is a vertical sectional view taken on the line 3--3 in Fig. 2. Fig. 4 is a horizontal sectional view taken on the line H in Fig. 2. Fig 5 is a sectional detail.

are rocking members A having at their intermediate portions U-loops, said loops which are engaged with hearing members, such as staples 19, being each provided with a long limb 20 which is terminally connected with one end of a contractile spring 21 and with a relatively short arm 22 having an offset portion 23 extending in the direction ofthe proximate door' leaf, said offset having a.

downwardly extending arm 24' provided with a terminal eye 25 that slldably engages a keeper 26 connected .with the door leaf.

Thus, when the member A is rocked in a direction to place the spring 21 under tension, the arm having the eye 25 will slidably engage the keeper 26, thereby moving the door leaf to an open position. When the force utilized to rock the member A is discontinued, the spring 21 will retract the parts, and the door leaf will swing shut.

For the purpose of simultaneously actuating the rocking members controlling the two door leaves, vertical actuating rods 27 are provided, said rods being equipped at their upper ends with eyes 28 engagmg the long arms 20 of the rocking members, and the lower ends of said rods being connected with a cross bar 29 extending beneath the floor 30 of the structure of which the wall 15 forms a part. The cross bar 29 is so arranged that it will be free to move vertically to a sufficient extent to cause the rocking members A to be properly actuated.

Fulcrumed on the inner face of the wall 15 above the doorway 16 are levers 31, the inwardly extending opposed arms of which are guided in keepers 32 and pivotally connected with links 33 that extend downwardly short distances below the upper edge of the doorway, said links being provided with slots 34 guided on studs 35. The door leaves are provided adjacent to their upper edges with beveled catch members 36 having slots 37 that are adapted to be engaged by the lower extremities of the links 33, the latter thus constituting latch members whereby the door leaves will be retained in a closed position. For the purpose of actuating the levers 31 to release the latch members or links 33 from the slots 37 of the catches, the rods 27 are provided at their upper ends with brackets 38 which are pivotally connected with the outwardly extending arms of the levers 31. Thus, it will be seen that downward movement of the rods 27 will result in actuating the latch devices, as well as the door opening and closing devices. It is obvious that the parts are to be so proportioned and arranged that the latch devices will be disengaged from the catches in time to presentno obstruction to the automatic opening of the door leaves.

The building of which the wall 15 forms a partis' provided with'an approach 39 leading to doorway 16, said approach including two pivotally supported bars 40, the free ends of which extend within the building the floor of which is provided with slots 41 to accommodate said bars. The free ends of the latter are supported on the cross bar 29. The bars 40 are of suitable width and are suitably spaced apart to be engaged by the wheels of an approaching vehicle under the pressure of which they will be actuated to orce downwardly the cross bar 29 and the vertical rods 27 whereby the door opening devices and the latch devices are actuated, as previously described. The door leaves will remain open as long as the barS' LO are subjected to suificient pressure; when the pressure is removed the spring 21 will actuate the mechanism toclose the doors which, on closing, will be automatically latched. and secured. There is a limited amount of play between the coil or loop 28 and the arm 20 of the member A which permits the rod- 27 to first lift the latch bolt 33 before the door panel is swung to an open pnsition. The member 26 describes a comparatively small are when the door panel is swung 'from a closed to an open position and hence long swinging movement of the arm 24 of the member A is not necessary.

It will be seen from the foregoing that l have produced a very simple and efficient door operating device which while applicable to double doors may also be utilized in connection with single doors and which will prove to be thoroughly eflective tor the purposes for which it is provided.

is claimed as new,'is:

Having thus describedthe invention, what In combination with a door mounted for swinging movement anda platform movably mounted and disposed under the door, an operating mechanism comprising a memher mountedfor rocking movement adjacent the hinged edge of the door and having an- 35 gularly disposed ends one ofwhi'ch is slid ably connected with the door, a spring exerting tension on the other end of said rocking member to normally hold the door in a closed position, means operatively connecting the last mentioned endportion of the member mounted for rocking movement with the said platform, a latch bolt mounted for engagement with the door when the same is in a closed position, and operating means connected with the latch bolt and the last mentioned end portion of the said rocking members.

In testimony whereof ll afiix my signature in presence of two witnesses.

GEORGE. R. WIMBERLY. Witnesses:

(J. Hoon, CHARLES GAUPIN. 

